From the back of the book: 'Red Sky at Night, Sailor's Delight: Airships provides all the rules necessary to bring flying ships into any campaign setting. Construction rules, combat, aerial and 3D movement, and other essential information is covered. Also included are deck plans and specifications for a number of ships. Airships brings new heroes to the fore when a village under siege cries 'Look! Up in the sky!' - BoardGameGeek